I am working with EC21 and EC25 modules. I understood that the both module families had the same AT command support, but I am finding that the EC21 module has logical channel support (+CCHO, +CCHC, and +CGLA) which I really need, but the EC25 does not. I am also finding that the support for +CSIM varies between the modules.
The module firmware versions are:
EG21GGBR07A09M1G EC25AFAR05A04M4G
Is there an updated/alternative firmware for the EC25 which will provide AT command support similar to the EC21?